Senior Backend Developer

3 weeks ago

Mumbai, Maharashtra, India WeSee Full time
Golden Opportunity for Senior Backend Engineers

Join a trailblazing blockchain/crypto platform where your code won't just run servers—it will power the backbone of decentralized finance . If you're passionate about designing scalable systems, building secure blockchain-powered backends, and solving high-stakes engineering challenges, this is your perfect playground .

We're looking for a Senior Backend Engineer with deep expertise in building robust, scalable backend systems and hands-on experience in blockchain-related architectures. Your role will be central in designing, developing, and optimizing backend systems that drive seamless transactions, real-time performance, and crypto-native integrations.

Key Responsibilities

Backend Architecture & Scalability

- Design and implement highly scalable, fault-tolerant backend systems for blockchain and Web3 applications.
- Optimize system performance for high transaction throughput, low latency, and global scale.
- Architect microservices and APIs that power crypto wallets, trading engines, and decentralized apps.

Blockchain Integration

- Build backend systems that interact with blockchains (Ethereum, Polygon, Solana, etc.) for smart contract execution, transaction processing, and data storage.
- Develop APIs and SDKs to bridge traditional web apps with decentralized platforms.
- Ensure security, reliability, and integrity of blockchain-related data pipelines.

System Design & Development

- Lead backend design discussions and contribute to system architecture decisions.
- Implement CI/CD pipelines, monitoring tools, and automated testing for backend services.
- Collaborate with frontend, DevOps, and security teams to deliver production-ready features.

Cloud & Infrastructure

- Build and scale backend systems on AWS/GCP/Azure.
- Implement caching, load balancing, and database optimizations for large-scale workloads.
- Manage databases (SQL/NoSQL) for crypto and transaction-heavy environments.

Requirements

- Experience: 3–5 years in backend engineering, with at least 2+ years in blockchain/crypto-related systems.
- Strong knowledge of backend frameworks (Node.js, Hapi.js, Express, NestJS, Vue.js or similar).
- Proven track record of designing and scaling distributed systems and APIs.
- Proficiency with databases (PostgreSQL, MongoDB, Redis, Cassandra, etc.).
- Experience integrating with blockchain nodes, smart contracts, and crypto wallets.
- Hands-on with microservices, event-driven systems, and message queues (Kafka, RabbitMQ, etc.).
- Solid grasp of security, authentication, and encryption in backend systems.

Preferred Skills

- Experience with crypto exchanges, DeFi platforms, or high-frequency trading systems.
- Familiarity with smart contract languages (Solidity, Rust, Move).
- Cloud-native deployments with Kubernetes & Docker.
- Performance optimization for high-load environments.
- Knowledge of Web3 SDKs/APIs (Ethers.js, Web3.js, WalletConnect, etc.).

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